壳牌成为头号罪魁祸首之一，尽管其承诺清理五年前在一次造成两名采油工身亡的大事故后造成的海洋石油污染。
Shell has emerged as one of the top offenders despite promising to clean up its act five years ago after a large accident in which two oil workers died.
溢油事故后采取的物理、化学应急措施能有效消除大片油污，而残余的石油污染物会在波浪和海流的作用下向岸边漂移。
After the oil was spilled into the sea, large amount of oil was removed by physical and chemical methods. However, residual oil pollutants will drift to the bank with the action of wave and tide.
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